Are you compiling all of your chapters together as one long document? If you are looking for endnotes to be placed at the end of each chapter, perhaps try compiling the chapters separately. On MacScriv when I need endnotes I compile the chapters separately, choose ‘Export Inspector Footnotes as Endnotes’ before compiling and the endnotes then appear at the end of each chapter.
Sorry I can’t be of more help with this. Best of luck with it, I’m sure a more knowledgeable Windows user will be able to help you out, or at least let you know if it is not possible.